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Finding the Fourth Proportional to 93,660.96, 129,249.50 and 51,218.58

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Solution

The fourth proportional to 93,660.96, 129,249.50 and 51,218.58 is: 70,680.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,660.96 : 129,249.50 = 51,218.58 : x
  2. Step 2: Convert to fraction form
    93,660.96/129,249.50 = 51,218.58/x
  3. Step 3: Cross multiply
    93,660.96x = 129,249.50 × 51,218.58
  4. Step 4: Simplify right side
    93,660.96x = 6,619,975,501.33
  5. Step 5: Solve for x
    x = 6,619,975,501.33/93,660.96
  6. Step 6: Final answer
    x = 70,680.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.